The EVE “Pop-On” plastic-back sanding discs are a unique, single-sided, and made with aluminum oxide grit and are ideal for the finishing of precious metals.   These thin, flexible, plastic backed pop-on discs can get into tight areas and will conform to surface contours making the polishing process quick, simple, and efficient.  Their translucent design lets you see your work through the disc for enhanced accuracy. These discs are also color coded for easy visibility (Blue=Coarse, Red=Medium, Yellow=Fine and White=Extra-Fine).  Available in 7/8” size, in packages of 100.  Optimal speed is 7,000 – 10,000rpm (Max 20,000rpm).  Can only be used with the unique Pop-on mandrel, 3/32” shank, which are sold separately in packages of 2 (8403208).  We also have a set of 25 of each grit, in a smaller, 5/8” size, (8452405), which comes complete with one 3/32” shank pop-on holder.